ticker vs timepiece

ticker and timepiece both are nouns.

Word	Noun	Adjective	Verb	Adverb
ticker	Yes	No	No	No
timepiece	Yes	No	No	No

As nouns, timepiece is a hypernym of ticker; that is, timepiece is a word with a broader meaning than ticker:

Other hypernyms of ticker include horologe, timekeeper.

ticker (noun)	timepiece (noun)
a character printer that automatically prints stock quotations on ticker tape	a measuring instrument or device for keeping time
a small portable timepiece
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body